Nacho Picasso has shown time and time again that he’s at his best at his darkest, and he’s teaming up with fellow Seattle rapper Avatar Darko for a new Vampsterdam project that—if “Black Velvet” is any indication—will trudge further into those dark corners of rap fit for a horror movie. Listen to/download “Black Velvet” below, and stay tuned to see how the rest of this one shapes up.